The History of Shellac, Part 3: A Fading Shine

The History of Shellac — a four-part series
Part 1: An Ancient Resin · Part 2: A Brilliant Century · Part 3: A Fading Shine · Part 4: An Enduring Finish

The Fall: Nitrocellulose, Vinyl, and the Long Contraction

The shellac century ended not with a single blow but with several overlapping ones, arriving between roughly 1920 and 1950.

The decisive blow to shellac as a furniture finish was nitrocellulose lacquer. American chemists at DuPont, working with surplus cellulose nitrate left over from wartime explosive production, developed a spray-applied coating that dried fast, built hard, and could be applied by industrial equipment at factory speed. By the late 1920s, American furniture manufacturers had largely converted. Shellac — whether button lac, flake, or dissolved — required skilled hand application. French polishing, which had been the standard for a century, was suddenly uneconomical against a factory spray line.

A countervailing force delayed the collapse: the phonograph record. From roughly 1900 through the late 1940s, 78 RPM gramophone records were made from a compound of shellac and mineral filler. By the early 1930s, a substantial fraction of America's entire shellac supply was consumed by record manufacturers. This sustained the shellac trade through the worst of the finishing-market contraction. Then World War II disrupted shellac supply chains — India's lac production was diverted to military applications, and the US government ordered significant reductions in record production to conserve what remained. The scarcity accelerated the development of vinyl records, which offered better performance and arrived permanently in the late 1940s. Shellac's last major industrial market was gone.

India's raw lac production figures tell the story plainly. Mid-century production had been at approximately 50,000 tons annually. By the early 1990s, it had fallen to around 12,000 tons. The cottage industry that produced button lac — which had been scaled to a world of high shellac consumption — contracted with it. What remained was a fragmented set of small producers, most of whom had no commercial incentive to maintain the quality controls that pure button lac requires.

Next week — Part 4: An Enduring Finish. What changed after the war, what survived, and why serious finishers are coming back.